package com.erms.dao;

import java.util.List;
import org.hibernate.LockMode;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.context.ApplicationContext;
import org.springframework.orm.hibernate3.support.HibernateDaoSupport;

import com.erms.bean.FileInfo;

/**
 * A data access object (DAO) providing persistence and search support for
 * FileInfo entities.
 * Transaction control of the save(), update() and delete() operations
 * can directly support Spring container-managed transactions or they can be
 * augmented to handle user-managed Spring transactions.
 * Each of these methods provides additional information for how to configure it
 * for the desired type of transaction control.
 * 
 * @see com.erms.bean.FileInfo
 * @author MyEclipse Persistence Tools
 */
public class FileInfoDAO extends HibernateDaoSupport {
	private static final Logger	log				= LoggerFactory
														.getLogger(FileInfoDAO.class);
	// property constants
	public static final String	PATH			= "path";
	public static final String	NAME			= "name";
	public static final String	DESCRIPTION		= "description";
	public static final String	TYPE			= "type";
	public static final String	SIZE			= "size";
	public static final String	TIMESTAMP		= "timestamp";
	public static final String	COMMENT_NUM		= "commentNum";
	public static final String	READ_NUM		= "readNum";
	public static final String	DOWNLOAD_NUM	= "downloadNum";

	protected void initDao() {

		// do nothing
	}

	public void save(FileInfo transientInstance) {

		log.debug("saving FileInfo instance");
		try {
			getHibernateTemplate().save(transientInstance);
			log.debug("save successful");
		} catch (RuntimeException re) {
			log.error("save failed", re);
			throw re;
		}
	}

	public void delete(FileInfo persistentInstance) {

		log.debug("deleting FileInfo instance");
		try {
			getHibernateTemplate().delete(persistentInstance);
			log.debug("delete successful");
		} catch (RuntimeException re) {
			log.error("delete failed", re);
			throw re;
		}
	}

	public FileInfo findById(java.lang.Integer id) {

		log.debug("getting FileInfo instance with id: " + id);
		try {
			FileInfo instance = (FileInfo) getHibernateTemplate().get(
					"com.erms.bean.FileInfo", id);
			return instance;
		} catch (RuntimeException re) {
			log.error("get failed", re);
			throw re;
		}
	}

	public List findByExample(FileInfo instance) {

		log.debug("finding FileInfo instance by example");
		try {
			List results = getHibernateTemplate().findByExample(instance);
			log.debug("find by example successful, result size: "
					+ results.size());
			return results;
		} catch (RuntimeException re) {
			log.error("find by example failed", re);
			throw re;
		}
	}

	public List findByProperty(String propertyName, Object value) {

		log.debug("finding FileInfo instance with property: " + propertyName
				+ ", value: " + value);
		try {
			String queryString = "from FileInfo as model where model."
					+ propertyName + "= ?";
			return getHibernateTemplate().find(queryString, value);
		} catch (RuntimeException re) {
			log.error("find by property name failed", re);
			throw re;
		}
	}

	public List findByPath(Object path) {

		return findByProperty(PATH, path);
	}

	public List findByName(Object name) {

		return findByProperty(NAME, name);
	}

	public List findByDescription(Object description) {

		return findByProperty(DESCRIPTION, description);
	}

	public List findByType(Object type) {

		return findByProperty(TYPE, type);
	}

	public List findBySize(Object size) {

		return findByProperty(SIZE, size);
	}

	public List findByTimestamp(Object timestamp) {

		return findByProperty(TIMESTAMP, timestamp);
	}

	public List findByCommentNum(Object commentNum) {

		return findByProperty(COMMENT_NUM, commentNum);
	}

	public List findByReadNum(Object readNum) {

		return findByProperty(READ_NUM, readNum);
	}

	public List findByDownloadNum(Object downloadNum) {

		return findByProperty(DOWNLOAD_NUM, downloadNum);
	}

	public List findAll() {

		log.debug("finding all FileInfo instances");
		try {
			String queryString = "from FileInfo";
			return getHibernateTemplate().find(queryString);
		} catch (RuntimeException re) {
			log.error("find all failed", re);
			throw re;
		}
	}

	public FileInfo merge(FileInfo detachedInstance) {

		log.debug("merging FileInfo instance");
		try {
			FileInfo result = (FileInfo) getHibernateTemplate().merge(
					detachedInstance);
			log.debug("merge successful");
			return result;
		} catch (RuntimeException re) {
			log.error("merge failed", re);
			throw re;
		}
	}

	public void attachDirty(FileInfo instance) {

		log.debug("attaching dirty FileInfo instance");
		try {
			getHibernateTemplate().saveOrUpdate(instance);
			log.debug("attach successful");
		} catch (RuntimeException re) {
			log.error("attach failed", re);
			throw re;
		}
	}

	public void attachClean(FileInfo instance) {

		log.debug("attaching clean FileInfo instance");
		try {
			getHibernateTemplate().lock(instance, LockMode.NONE);
			log.debug("attach successful");
		} catch (RuntimeException re) {
			log.error("attach failed", re);
			throw re;
		}
	}

	public static FileInfoDAO getFromApplicationContext(ApplicationContext ctx) {

		return (FileInfoDAO) ctx.getBean("FileInfoDAO");
	}
}
